@article{ref1,
title="Hookup sex versus romantic relationship sex in college: why do we care and what do we do?",
journal="Journal of Adolescent Health",
year="2013",
author="Calzo, Jerel P.",
volume="52",
number="5",
pages="515-516",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="1054-139X",
doi="10.1016/j.jadohealth.2013.03.001",
url="http://dx.doi.org/10.1016/j.jadohealth.2013.03.001"
}